Stevie, solid session yourself, did you take other grip footwear, or did you know the track might be frozen?
Johnas, you're crackin on nicely as well. And mentally those time sessions do feel easier sometimes....when you hear "6mins" you think, that's not long, whereas "over 1mile" just sounds longer! Maybe I'll approach the half as something like 13x5.50ish or something 
No reason a track couldn't get frozen is there? Astro turf is described as "all weather", but if it's icy it's not useable, so i guess a track can certainly be the same. I remember seeing some slippy patches when I was doing a session on my track in quite low lights...had to be careful!
Matt, sounds some fast paces. Liked the 5.15! In the old days If i'd done a session like that I expect my first one would have been something like 5.00 pace, and the 10th one probably wouldn't have been distinguishable from the recovery 
Just a 4 and a 3 today. Feel a bit tight in an area that's hard to describe, in between the hip and groin I suppose. But in better shape than after that last huge tempo 2 weeks ago...the day after was so crunky!
Edited: 16/01/2013 at 07:54